Cleveland Guardians vs. Detroit Tigers

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians and Detroit Tigers are scheduled to play in Detroit on 21 May, with the market set by the official result only once the game is completed. A 16% price on Cleveland implies a clear Tigers lean, which is consistent with the recent form split in the series: Cleveland won 8-2 on 18 May, while Detroit has been described in game coverage as “reeling” after a run of poor results. For context, Cleveland sat at 27-22 after that win, and the last five head-to-heads listed by StatMuse show a relatively tight, low-sample rivalry rather than a one-sided historical matchup. In regulatory terms, access can vary: German users face GlüStV-related constraints on online gambling-style products, US market participation can be affected by the CFTC’s enforcement reach, and “no-KYC up to $1,500” generally means smaller positions may be available without full identity verification, though limits and availability depend on the platform and jurisdiction.

Traders should watch the confirmed line-ups, starting pitchers and any late injury or rest announcements, because MLB markets can move sharply on same-day roster news. The main dependency is simply whether the game starts and finishes as scheduled; if it is postponed, the market stays open until completion, and if it is cancelled outright, it resolves 50-50. ESPN’s 18 May box score and recent highlight coverage indicate Cleveland’s offence had some traction, with José Ramírez driving the 8-2 win, while the Tigers’ own standings page is the useful reference point for their broader season context. If there is any weather disruption or a pitching change before first pitch, that is the most immediate catalyst for repricing.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.